I find this one gets leggy, and refuses to stay put in a nice mound like Sedum 'Angelina' does. I have bits of this coming up all through my succulent bed. I don't think it is from seed, though, just broken bits. But I could be wrong!

Also this one seems to be an aphid magnet, keep finding black aphids on the flower stems. Nothing a good spray of water won't solve, though.

I'm finding I prefer Angelina much more. It's a really dense ground cover.

If they could make a blue 'Angelina' I would be very happy!

Yeah I agree. I love that blue color, but it's so leggy and inattractive at certain times of the year. After the flowers die, there is definitiely new growth, but the new growth takes all summer to fill in. I'm obsessed with Angelina, I've been putting it everywhere!

Is this the blue spruce in this pot, lower left? If so, I'll agree the stuff grows like weeds, but it's pretty, chokes out actual weeds, and I have time to keep it within bounds. Tiny pieces can root, no need to harden off either. I don't mind it. Mine hasn't bloomed though.

Yup that's it!